Y40-Y59: Drugs, medicaments and biological substances causing adverse effects in therapeutic use

Y42: Hormones and their synthetic substitutes and antagonists, not elsewhere classified

The ICD-10 code Y42 represents a group of conditions that are related to the use of hormones, synthetic hormone substitutes, or hormone antagonists. At a basic level, these conditions are often linked to an adverse reaction or side effect resulting from taking these substances. They can alter the body's natural hormonal balance and may negatively impact the normal functioning of various systems in the body, such as the reproductive system, endocrine system, and cardiovascular system. Symptoms may vary widely depending on the specific hormone involved, but they can include weight changes, mood swings, tiredness, hot flashes, and issues with sleep or digestion. The progression of these conditions can also differ, with some issues being temporary and others causing long-term complications if left unaddressed. It's important to clarify that these conditions are commonly caused by medically prescribed use of hormones and should not be confused with illicit or unsupervised use of such substances.